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ESP32 Forths

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Rick C

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Jan 10, 2022, 10:32:03 AM1/10/22
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I was surprised to find the prolific Mecrisp Forth doesn't seem to be implemented on the ESP32.

http://mecrisp.sourceforge.net/

I'm shocked and surprised. I read that the ESP32 has closed source code for the TCP/IP stack requiring programming through C. I suppose that's the reason for not having ported Mecrisp to the ESP32? Anyone know?

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Paul Rubin

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Jan 10, 2022, 3:46:13 PM1/10/22
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Rick C <gnuarm.del...@gmail.com> writes:
> I was surprised to find the prolific Mecrisp Forth doesn't seem to be
> implemented on the ESP32.

Mecrisp is written mostly in assembly language and the original ESP32
uses a somewhat weird instruction set, so porting Mecrisp would be a lot
of work. The newest ESP32 model (ESP32-C3) uses the RISC-V architecture
and Mecrisp already runs on RISC-V, so porting to the ESP32-C3 would be
easier than to the original ESP32.
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